John Hunter Nemechek's car goes up in flames after Martinsville win in NASCAR Xfinity Series

John Hunter Nemechek celebrated his second NASCAR Xfinity Series victory of the season and first win in his first series start at Martinsville Speedway by setting his race car on fire - perhaps a fitting finale to his hot night behind the wheel. 

On Saturday, the 25-year-old took his No. 20 JGR Toyota to the front stretch to do a traditional burnout celebration in front of fans in Virginia, as his vehicle's rear left wheel went up in flames before all body parts and part of the track eventually did too.  

'I can't say enough about this whole team, if you would have asked me yesterday if we would have won, I thought we were a 10th place car in practice,' said Nemechek, whose car was ironically sponsored by a fire extinguisher company (Pye Barker Fire & Safety). 'Just grateful the guys made the right adjustments.'     

'Let's celebrate.' 

Not only did the son of NASCAR legend Joe Nemechek win the race, he also won the $100,000 Dash 4 Cash incentive prize awarded by series sponsor Xfinity, which was handed to him in the form of a giant check following this weekend's event.        

John Hunter Nemechek, 25, celebrated his Martinsville Speedway win by setting his race car on fire on Saturday night in traditional fashion in front of NASCAR fans

Saturday night's victory was Nemechek's second of the season after scoring a win at Fontana

All body parts of Nemechek's Toyota and part of the track eventually caught fire too

Overall, Nemechek led a dominating 198 of 250 laps to win it all on Saturday, besting his Joe Gibbs Racing teammate Sammy Smith by 1.518 seconds. 

The sixth-year NASCAR driver, whose first race was at the 2018 Rinnai 250 (Atlanta), took the lead for good on a race restart with 32 laps remaining after winning the first two stages of the race. He, Smith and third-place finisher Cole Custer were easily the class of the field all night, running some version of 1-2-3 for most of the race.

Smith was able to nudge his way past Custer on the final lap for that runner-up showing.

And while Nemechek's car was the best of the pack on the night, there was still a lot of compelling wheel-to-wheel competition behind him.

Fourth-place finisher Josh Berry, for example, led the next highest number of laps (27) - his No. 8 JR Motorsport Chevrolet looking especially strong until a tire situation forced a long pit stop midway through the race. He rallied back through the field, however, to take his seventh-consecutive top-10 finish on the year, tying the longest stretch of his career.

A detail view of burn damage to a tire of Nemechek's car after the burnout celebration

Nemechek poses with the $100,000 Xfinity Dash 4 Cash check after winning Saturday's race

Berry's JR Motorsports teammate Brandon Jones finished fifth - his first top 10 of the season in the No. 9 JRM Chevrolet. He was followed by another teammate, Justin Allgaier, who was able to keep his No. 7 JRM Chevy in the lead group despite not feeling well. He finished on much older tires than the rest of the lead group.

Nemechek - who swept both stage wins - Smith, Custer and Berry are now eligible for the next installment of the Xfinity Dash 4 Cash $100,000 award - next week at Talladega (Ala.) Superspeedway. The top finishing driver from among that four gets the big check.

'Congrats to them, they were the best car all night,' Smith said.

Kaulig Racing teammates Daniel Hemric and Derek Kraus, AM Racing's Brett Moffitt and Kaulig's Chandler Smith rounded out the top 10.

Austin Hill - who leads all drivers with three wins this season - finished 16th and with Nemechek's win the second-generation driver takes over the points lead by 21 points over Hill.